PORTS® - Physical Oceanographic Real-Time System. PORTS® is a decision support tool that improves the safety and efficiency of maritime commerce and coastal resource management through the integration of real-time environmental observations, forecasts and other geospatial information. PORTS® measures and disseminates observations and predictions of water levels, currents, salinity, and meteorological parameters (e.g., winds, atmospheric pressure, air and water temperatures) that mariners need to navigate safely. The three PORTS in the northeast include New York/New Jersey Harbor, New Haven Harbor and Narragansett Bay.